Born in Sinope
(today's Turkey), Diogenes studied in Athens under Antisthenes after forcing
himself into his school.
Diogenes was to be what we today call an ascet, eating plainly, wearing shreaded clothes and sleeping in the streets. Though an eccentric, he was greatly admired by his time and is sometimes called the founder of the Cynic school instead of Antisthenes.
When travelling to Aegina he was captured and sold as a slave by pirates. Xeniades of Corinth bought him, set him free and had him teach his children.Diogenes often visited the famous prostitute Lais, and said that the difference between what costs money and what does not cost anything one can see at the nearest brothel.
Tradidion holds that Diogenes died on the same day as Alexander the Great. He was 96 years old, and died in his barrel in Corinth. Though the philosopher had requested his body be thrown in some ditch, he was given a magnificent funeral.